Siphon jet closet



Sept. 1,-1931.

(5. P. GAVIN SIPHON JET'CLOSET Filed Aug. 1-1, 1930 A T TOENE Y lie Patented Sept. 1, 1931 f UNITED STATES PATENT OFFICE GORDON r. GAVIN, orzorzrnn, Wisconsin; Assrenoa TO Konzna COMPANY, or

KQHLER, \VISCONSIN, conroae'rron or Wisconsin j I sIrHoN JET CLOSET Application filed Aug'ust 11, 1930.

k crease the pressure and volume of water discharged through the jet by compelling all.

rim water to pass the jet and to facilitate the proportioning of water supplied to the t and the rim respectively. Another object of the invention is to create a greater pressure and volume of water discharged at the front of the rim than at the rear. r

A further object of the invention is to accomplish theabove without necessitating the use of a vacuum breaker on the flush valve.

With the above and other obje'ctsin view end of the boWl on the plane of line 14L of Fig. 1.

In these drawings, 10 indicates a closet bowlhaving a siphon discharge way 11 as usual,

and a flushing rim 12 and siphon jet nozzle 13. Through the inlet opening 14: water is" admitted to a reservoir 15 above the siphon 11, but is not discharged directly to the flushing rim as usual, there being a partition wall 16 above the siphon limiting the size of the reservoir. The path of travel from the reservoir 15 extends on opposite sides of the siphon 11 to the space 17 between the two legs of the 5 siphon and directly to the siphon jet nozzle 13 and then upwardly and to the front of the closet through passageway 18 along the bottom and front walls of the bowl to the front part of the flushing rim 12, from which it is discharged over the entire surface of the relation. to a greater extent in. the ordinary 9-1 Serial No. 474,463.

bowl through the discharge openings 19. In this manner all water supplied to the flushing rim passes the siphon jet nozzle 13.

In order that the reservoir and passageway therefrom may drain to the water level in the bowl and trap, small vent openings 20 of insuflicient size for the flow of water therethrough but capable of admitting air to the reservoir are formed in the top of the partition wall 16 and the rear wall of the flushing rim. At the end of the flushing operation air enters through the discharge openings 19 of the flushing rim and passes through the vents 20 into the reservoir 15, permitting the water thereof and the water in the supply pipe, not shown, to recede to the water level in the bowl.

With this closet construction it is made quieter and more positive in action since all water passes the jet before it reaches the rim and all pressure provided by the tank or flush valveis available at the jet. This affords a greater pressure on the jet than is the case where a part of the water is diverted to the rim supply before it reaches the jet, with a consequent reduction in pressure of thewater delivered to the jet. For this reason the construction gives a more efficient operating jet with a quicker and more positive action.

Furthermore, with this type of construc tion it is much easier to proportion the amount of water passing. through the jet to that which passes through the flushing rim. It is desirable to have only suflicient water pass throughthe'flushing rim to wash the bowl thoroughly and to have as much water as pas'sible pass through the jet. 1n. practiceit has been found that a proportion of about sixty per cent of water through the jet and forty per cent through the rim is most de-cfll sirable. With this type of construction it is much easier to proportion the respective amounts of water, due to the fact that the hole for the supply to the rim on the ordinary bowl is punched and variations in punchings J5 are very apt to occur, which would change the proportions of water distributedto the jet and tothe flushing rim. Also, variations in the pressure of the water may disturb tlllS bowl than in the bowl of the present invention.

Again, with the present construction,-the greatest pressure and largest proportion of water from the flushing rim is delivered at the front of the bowl where it is most needed. \Vith the, ordinary bowl the reverse is the case, as the water passing through the rim toward the front of the bowl loses volume and force due to its flow through the rim supply holes, and the greatest volume and pressure are at the rear of the bowl. 'The larger volume of water delivered at the front of the bowl flows down and forms a cataract, which impinges upon the surface of the water .in the bottom of the bowl and tends to drive floating-obj ects downtc where they are forced out by the jet. ,It also aids the jet in delivering a quantity of Water into the leg of the siphon rapidly, thus making a quicker and -niore positive siphoning.

In the ordinary bowl the reverse is true as the 'reatest volnine of water coming from the rear of the bowl tends to drive floating ob ects away fromthe jet and to oppose the flow from the :jct rather-than aid it in starting the siphon.

Also with this type of bowl the water travels throu h a lon assa 'ewabefore a D I;

reaching the rim instead of through a comparatively short distance, as in the ordinary makes a much quieter acting bowl, as the friction of the passageway tends to-stop allrushing and gurgling, which is quite frequent in the ordinary bowl using vent this byallowing enough air to enter to 130 a short passageway to the rim.

Because of the venting of the reservoir it .is not necessary to use vacuum breaker on break the vacuum and prevent back siphoning. The vent openings of the present con- 'StI=L'lCt1'OIl"COI1S1I 1l'/11t(5 a vacuum breaker, maka separate vacuum breaker on the flush Evalve unnecessary.

What I claim as new "and desire to secure by Letters Patent is:

l. .A siphon jet closet comprising a bowl having lrSlPhOIl discharge way with asiphon .jet nozzle and a flushing rim, a chamber above thesiphon having a supply opening, and-a passageway from the chamber around the opposite sides of the siphon bend to the space between the legs of the siphon and to the siphon jet nozzle and from the siphon jet nozzle upward and forward along the botpassageway leading from the chamber to the siphon jet nozzle and from the siphon jet nozzle to the front of the flushing rim, there being vent openings through the rear wall of the flushing rim and through the partition Wall for venting the chamber.

3. A siphon jet closet comprising a bowl having a siphon discharge way with a siphon jet nozzle and :a flushing rim, a chamber above the siphon having .a supply opening,

and a passageway from the chamber around the side of the siphon bend to the space between the legs ofthe siphon and to the siphon j-et nozzle and from the siphon jet nozzleupward and forward along the bottom of the bowl to the front of the flushing rim.

4. vA siphon jet closet comprising a bowl having a siphon discharge way with a siphon jet nozzle and a flushing rim, a charmber above the siphon having a supply opening, and a passageway leading from the chamber to the siphon jet nozzle and from the siphon jet nozzle to the front of the flushing rim, there being a vent opening through the rear wall of the flushing rim communicating uu'th the chamber.

- In testimony whereof, I afiix my signature.

GORDON P. GAVIN. 

